Spray nozzle



O. JACOBSEN.

SPRAY NOZZLE. APPLICATION FiLED APR-9,1921.

Patented Oct. W, 19 22.,

ottersriv.i'mconsrar, or Dawes, onto, assrenonro TI-IE nuninon" cor/merry inc,

A oonronnrion orinnw roan.

i rl er N ZZ 9 application filed Aim 9,

*TdaYZZ tchom it may come/m;

Be it knownthat LOrsrnm Jaoonsnn,

citizenof the United States, and a resident of D'ayton, in the count'y of Montgomery 1 the following is a; specification.

and State-of Ohio, have made a new and useful Invention inSpray Nozzles, of which The invention relates to spray nozzles. It isdesigned particularly for use in th'osere lations in which the nozzle or at least the .fiforward end thereof is'exposed to fumes of a a corrosive nature, b lllldihG construction is useful in other I'GlttlOIlS and when made,

from metal other than acid resisting compositions. The invention has for its pri mary o'bj eats the provision of-an improved and simplified construction designed to give the well known conical spray, (1) wherein the casing and thimble maybemade of very hard. acid resisting materials requiring a minimum'amount of machine work; (2) wherein 'a lined and definiterel'ationfbetween the outlet passage in the casingjand the passage orpassages which give the liquid to be sprayedits whirling motion is seiicured, thus insuring a conical spray of uniii'orm and symmetrical configuration; (3) ,wherein the gasket for making between the nozzle casing and its support fixture is alsovutilized to hold the thinlyble against movement in the Leasing; and "(4) wherein the nozzle parts maybe very easily assembled and disassembled forthe purpose ofreplacement or repair. Certain embodiments of' theinvention are illustrated in the accompanying drawings wherein 3 Figure 1 is a partial side elevation and 1 partial section' throughthe preferred em- 1 I bodiment of the invention And Fig.2 is an end viewflooking into'thecasmg with the thimbleremovedtherefrom wifReferring-to the construction ol- Figs. 1

and-2; 1 is the casing of the nozzle; isthe thimble; 3* is a fixture or connection mounted upon the end of the supply p pipe' 4; and 5is"a coupling by means of which the easing 1 is clamped to the end of the fixture:

i I'The casing landthimble Qare preferably composed of an acid resisting compound such as the material known In the art as iduriron, such materlal'contalnlnga large percentage of silicion and being exceedingly.

collar portionll engage the innersurface of the casing 1 and 75 form of 1921. Serial no. 460,004;

hard and relatively diflicult to machine. The coupling 5 and fixture 3 may be made of ordinary cast iron or any othersuitable material while thepiped is of ordinary or other gasket 6 is employed,

and being tightly clamped between the opposing ends or the casing andfixture. This gasket also performs the additional function of hold ng the thimble 2*in position with its inner end in tight The discharge end of the casingispro *vided with the conical chamber 7 andwith a' discharge opening 8 preferably of the 'torin shown. The casingand thimble at 9 and 10 are ground orsmoothed so that a relatively tight fit is secured. The thimble isprovided with a at its inner end adapted to is also provided with a to permitallow of the thimble to pair of openings 12 of fluid from the interior thimble.

from the chamber 13 to the chamber 7" a pair of angularly disposed passages or, grooves 14 are provided in the surface of theinner face oitthe en dofthe'casing. These grooves communicate at their outer ends with a pair 85 ing 8 of the casing and because of its rotary 95 movement and" because of the shape of the chamber ;7 the discharged liquid assumes the divided spray.

ily-ground, 'which'is desirable, because of the hardness ofthematerial' used, while the grooves 14 and 15 formed upon the inp y engagement with the gdlscharge end of the casing.

opposing surfaces of the the chamber 13 formed between the two collars on the ti ht j i t. In order tofprovide for theflow of fluid wary reason of the angular disa'hollow conepthus giving a finely r terior walls of the casing 1 are secured by coring out in the casting operation so that no machining is required at these points. It is not necessary that the thimble should have aclose fit in the casing although it is desirable that the annular surfaces at 9 should have a good fit in order to insure that substantially all the liquid shall pass .through the grooves 1 1 and 15 and thus secure a maximum whirling effect, suchas could not be secured if the joint at 9 were loose so that a part of the liquid-could pass to the chamber 7 through a space other than the grooves 14. It is a comparatively easy matter however to secure atight joint at this, point by grinding the opposing surfaces and the pressurebetween the surfaces secured by reason of the engagement of the gasket 6 with the innerend of the thimble. The use of the hard material in the cap is particularly desirable in a device of this kind since the wear at the outlet 8 is ordinarily relatively great due to the friction of the liquid.v

"It is;also extremely desirable that the grooves 14 and 15 should be made in the cap 1, ratherthan in the thimble as this insures that the passages will be symmetrical with respect to the opening 8 and with respect to the axis of the casing. This would not bethe caseif the grooves were in the surfaces of the thimble as in this case the grooves would be thrown slightly off center with respect to the axis of the casing and with respect to the discharge casing if the thimble had any lost motion in the casing 'and'to'avoid this considerable expense an care would be necessary in order to machine the parts accurately. to fit. 1

What I claimis;

1. In comb nation in a spray nozzle, a fixture, a casing clamped to the fixture and having its outlet end provided with a central outlet passage and with the inner face of said end-provided with an angularly disposed groove for giving the liquid passing therethrough a movement around the axis of the casing, and a thimble in the casing with its outer end closed and in opposition to the inner face of the end of the casing, the said thimblehaving its wall perforated, and a passageway being provided between the op posing side walls of the'casing and thimble leading to the outer end of said groove.

2. In combination-in a spray nozzle, a fixture, a casing clamped to the fixture and having its outletend provided with a central outlet passage and with the inner face of said end provided with a plurality of angularly disposed grooves for giving the liquid passing therethrough a movement around the axis of the casing, and .a thimble in the casing with itsouter end closed and in opposition to, the inner face of the end of the casing, the said thimble having its wall perforated, and a passageway being provided between the opposing side walls of the casing and thimble leading to the outer ends of said grooves.

3. In combination in a spray nozzle, a fixture, a casing clamped to the fixture and having its outlet end provided with a central outlet passage and with the inner face of said end provided with an angularly disposedvgroove for giving the liquid passing therethrough a movement around the axis of the casing and a thimble in the casing with its outer end closed and in opposition to the inner face of the end of the casing and fitting loosely in the casing to provide a passageway longitudinally of the casing from the perforation in the wall of the thimble to the outer end of said groove.

a. In combination in a spray nozzle, a fixture, a casing clamped to the fixture and having its outlet end provided with a central outlet passage and with the inner face of said endprovided with an angularly disposed groove for giving the liquid passing therethrough a movement around the axis of the casing, and a thimble in the casing with its outer end closed and in close engagement with the inner face of the end of the casing, the said thimble having its inner wall perforated and a passageway being provided between the opposing side walls of the casing and thimble leading to the outer end of said groove.

5. In combination in a spray nozzle, a fixture, a casing clamped to the fixture and having its outlet end provided with a central outlet passage and with the inner face of said end provided with an angularly disposed groove for giving the liquid passing therethrough a movement around the axis of the casing, the inner side face of the casing also provided with a groove leading to the outer end of the first groove, and a thimble in the casing with its outer end closed and in opposition to the inner face of the end of the casing, the said thimble having its wall perforated, and a passageway being provided between the opposing side walls of the casing and the thimble leading to the inlet end of the second groove.

6. In combination in a spray nozzle, :1. fixture, a casing clamped to the fixture and having its outlet end provided with a central outlet passage and with the inner face of said end provided with an angularly disposed groove for giving the liquid passing therethrough a movement around the axis of the casing, the inner side face of the cusing also being provided with a groove leading to the outer end of the first groove, and a thimble in the casing with. its outer end closed and in opposition to the inner face of the end of the casing, the said thimble having its wall perforated, and a passageway being provided between the opposing side walls of the casing and the thimhle In testimony whereof, I have hereunto leading to the inlet end of the second groove, subscribed my name this 5th day of April the said thimble having a machine fit at its 1921.

end with the inner end and side surfaces of O. JACOBSEN. 5 the casing carrying the grooves in order to Witnesses: v 4

substantially restrict the passage of the liq- W. E. PRATT,

uid to said grooves. J. DWIGHT. 

